diff --git a/lufi.conf.template b/lufi.conf.template
index 4893fa3..1305f27 100644
--- a/lufi.conf.template
+++ b/lufi.conf.template
@@ -226,11 +226,42 @@
     #
     # Define the attributes like this: `lufi_attribute_name => 'LDAP_attribute_name'`
     # Note that you can’t use `username` as a Lufi attribute name: this name is reserved and will contain the login of the user
+    # optional, no default
     #ldap_map_attr => {
     #    displayname => 'cn',
     #    mail        => 'mail'
     #},
 
+    # When using LDAP authentication, LDAP users can invite people (by mail) to use Lufi to send them files without
+    # being authenticated.
+    # This is where you configure the behavior of the invitations.
+    # You may need to fetch some attributes from LDAP to use some invitations settings. See `ldap_map_attr` above.
+    # optional, no default
+    #invitations => {
+    #   # The `From` header of invitation mail can be the mail of the LDAP user
+    #   # To enable this feature, set it to the `ldap_map_attr` attribute containing his or her mail.
+    #   # optional, disabled by default
+    #   send_invitation_with_ldap_user_mail => 'mail',
+    #   # The user is able to set an expiration delay for the invitation.
+    #   # This expiration delay can’t be more than this setting (in days).
+    #   # optional, default is 30 days
+    #   max_invitation_expiration_delay => 30,
+    #   # Once the guest has submitted his files, he has an additional period of time to submit forgotten files.
+    #   # You can set that additional period of time in minutes here.
+    #   # optional, default is 10 minutes
+    #   max_additional_period => 10,
+    #   # Lufi follows privacy-by-design, so, by default, no files URLs (with the decode secret) are stored in database.
+    #   # However, the concern is different for this case. Storing files URLs makes users able to retrieve the guests’ sent files
+    #   # from their `invitations` page.
+    #   # Set to 1 to store guests’ files URLs in database
+    #   # optional, default is 0 (disabled)
+    #   save_files_url_in_db => 0,
+    #   # Users can resend the invitation to their guest. This does not extend the invitation’s expiration delay unless you
+    #   # set this option to 1.
+    #   # optional, default is 0 (disabled)
+    #   extend_invitation_expiration_on_resend => 0,
+    #}
+
     #########################
     # Htpasswd authentication
     #########################